Hardfill坝筑坝材料工程特性分析

Analysis on Material Property of Hardfill Dam

Hardfill坝是一种新坝型,这种新坝型的基本特点是采用一种称为Hardfill的低强度筑坝材料。hardfill是利用在坝址附近易于得到的河床砂砾石或开挖弃渣等材料,加入少量水泥和水而获得的一种低强度筑坝材料。基于现有试验成果,对Hardfill材料工程特性进行分析。主要分析了Hardfill的本构关系、强度特性、渗透特性和热力学特性等。分析结果表明,Hardfill材料在工程上具有许多优良的性质,把低强度的hardfill材料与梯形hardfill坝结合起来,具有技术上和经济上的优越性,应用前景良好。

Hardfill dam is a new type of dam.The basic feature of this dam is to use a new type of dam material known as Hardfill.Hardfill is a low strength material made by adding cement and water to the rock-similar materials such as the riverbed gravel or excavated muck that can be obtained easily near dam sites.Based on the results of tests,the engineering properties of the Hardfill material are analyzed, including the constitutive law,strength properties,seepage properties,thermodynamics properties etc.The analysis results show that the Hardfill material has many good properties for the dam material.Combining with the trapezoidal Hardfill dam,it has many advantages both in technology and economy.